Improvement in saw-sets



@nimh tnt ntmt @frn BENJAMIN N. BIITCHER, OF PHILADELPHIA, PENNSYLVANIA.

Letters Patent No. 64,835, (lated Way 211867..

TO ALL WHOM IT MAY CONCERN:

Be it known that I, BENJAMIN N. BUTGHER, of Philadelphia, in the countyof Philadelphie, State of Penn- Sylvania, have invented n new Mode ofGiving the Set to the Teeth of Saws-g and I do hereby declare that thevfollowing is a full and exact description thereof, reference being hadto the accompanying drawings, and to the letters of reference markedthereon.

Figure I is (t perspective view of the machine or tool, with a. saw, K,placed in position to be set.

Figure 2 is a, front elevation of the same without sow.

Figure 3 is n view look-ing nt the back or rear of the machine or tool.

Figure 1l is a. view inperspectivc of the bed-plate A or bnse, with theguides E, the mandrel B, and the sets C and D removed. i

Figure 4 is nn end elevation.

Figures 6, 7, 8, 9, are views of the guides E separated in detail.

A is-t'he'bed-piece, made of meta-l, and ntt-nched to the wooden blockM. The top face is level, but hns both edges bevellcd oi` with differentangles of inclination to the top fece, so as to give n greater or lessamount of set to the teeth of the smv. The bed-piece is shorter than theblock M, scA :1st0 lenve space at each end, to afford bearings for theframe-pieces or guides E', gs. Tand 8, which nre attached to the ends ofbed-piece A by means of the screws H passing .through the guide, a-ndentering:r one or the other holes I, ns the set maybe intended to beadapted to either ofv the bevelled edges of the bed-plete A. Theguide-piece E, shown in rigs 6 and 9, is ndjustnbly confined on the.piece E by set-screws G sliding on its bearing parts, its may berequired to fit the saw in place. When the saw is placed for setting itvis clamped by the set-screws F passing through 'one or the other of thetwo openings in the top of the piece E. B is a. rod, passing between theguides E, and parallel to the edge of the blade of the sew, and bearingthe sets C and D, which are pointed and shaped as shown, to give theproper set to the saw-teeth, by lnying the point of the set on vtheteeth, and striking it with n. hammer.

What I claim as my invention, and desire to secure by Letters Pntent,is-

'Ihe combination of the bed-plate A with bevelled edges of diiferentangles of inclination, land the reversible und adjustable guide-pieces Eand E', set-screws F and G, and sets C D, substantially es :und for thepurpose set forth.

BENJAMIN N. BUTCHER.

Witnesses DAVID BEITLER, WELLS WATTEN.

